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Laft week, in the Bodleian Library, I met with 
an Arabic MS. of Diofcorides. It appears quite in- 
tire and perfect. The Greek titles are inferted in the 
margin by Dr. Hyde, in red ink, which is fome 
proof of his value for this MS. To me it appears a 
real treafure, and it is likely it may be of excellent 
ufe in corredting the very corrupt text of that author : 
perhaps too it may be a means of afeertaining the 
Materia Medica of the elder Greek phylicians. The 
Efcurial MS. contains only the firft three books, and 
is imperfect at the beginning. If a tranfeript of 
this latter, however, could be obtained, it might 
likewife be of great ufe. 
I am, 
S I R, 
Your moll obedient 
humble fervant, 
Eflex-flreet, 
Oft. 24, 1766. 
John Channing. 
€ 
Copy 
